Question

Which of the following statement is correct for pituitary gland?
(i) Melanocyte-stimulating hormone is secreted from the intermediate lobe of the pituitary gland.
(ii) The pituitary gland is located below the hypothalamus.
(iii) Oxytocin produces from posterior lobe of pituitary gland.
(iv) Somatotropic hormone secretes from intermediate lobe of pituitary gland.

• A. (i), (ii), (iii)
• B. (i), (iv), (iii)
• C. (i), (ii), (iv)
• D. (i), (ii), (iii), (iv)

Answer 1

Answer: (A)

• • The pituitary gland is a tiny organ, the size of a pea, located at the base of the brain below the hypothalamus(located below the thalamus part of the brain). The pituitary gland is divided into three parts, also called lobes:
    
  • Anterior pituitary, Intermediate pituitary (Absent in adult human beings)and Posterior pituitary.
  • Melanocyte-stimulating hormone (MSH) is secreted from the intermediate lobe of the pituitary gland. It Stimulates the production of melanin by skin and hair.
  • Posterior lobe pituitary gland secretes Oxytocin. Oxytocin Controls certain aspects of pregnancy and childbirth such as uterine contraction and production of milk.
  • Somtotropic hormone secretes from the anterior lobe of the pituitary gland.
  • So, the correct answer is (I),(II),(III).